A friend asked if we were issued can openers for our C-Rations. We were!
Official military designations for the P-38 include
"OPENER, CAN, HAND, FOLDING, TYPE I".
We were issued a P-38 can opener, commonly called a "John Wayne". Many of us wore the opener around our necks with our dog tags. They were small and handy and many of us still have them.
The P-38, developed in 1942, is a small can opener that was issued in the canned field rations of the United States Armed Forces from World War II to the 1980s. Originally designed for and distributed in the K-ration, it was later included in the C-ration. As of 2020, it is still in production and sold on a worldwide market.
Click to read more: https://en.wikipedia.org/wiki/P-38_can_opener